Canonical Gymnasium Physics Topic Workboard

Snapshot: 2026-04-20

Purpose:

• steer canonical Gymnasium Physics by topic first
• use Bundeslaender as evidence and validation lanes, not as the pedagogical design driver
• make open nationwide topic debt explicit before more state-local rollout entropy accumulates

Scope rule for now:

1. the active cross-state Physics surface is still mainly Sek II
2. the board therefore starts with the four upper-secondary topic rows that already have real multi-state evidence
3. Sek-I Physics rows should be added once more non-Hessen lower-secondary source lanes become real
4. the active source-onboarding tranche nevertheless covers Sek I and Sek II source acquisition together

Working rule:

1. the previously missing-state Physics source archive tranche is now complete for both Sek I and Sek II where applicable
2. the source-snapshot and provenance activation tranche for those newly archived states is now also complete
3. the first conservative structural-anchor pass (P3) across those new source-backed states is now complete
4. the next active tranche is the first renewed horizontal reviewed Physics topic-row pass across all retained states
5. then review the current canonical atom inventory for that row
6. compare the row against all retained Bundesland sources
7. classify each state cell
8. add canonical atoms only where multiple states or strong pedagogical structure justify them
9. only then widen or refine the state mappings for that topic

Coverage rule:

1. every active Physics topic row runs in all states required mode
2. with the newly archived-state structural-anchor tranche now complete, the active work item is the renewed horizontal all-state topic-row pass, not another state-local structural activation
3. a topic row is operationally closed only when every retained Bundesland source column is resolved once
4. seed, anchor, corr, gap, and loc count as resolved cells; only n/s means the row is still unchecked for that state

Legend:

• seed: canonical topic already materially seeded from the Hessen reference lane
• anchor: only broad structural or area-level alignment exists
• corr: at least one reviewed corridor is already mapped for this topic
• gap: current reviewed source evidence suggests a canonical gap or unresolved atomic split
• n/s: not started
• loc: state-local packaging; do not automatically canonicalize

State columns use Bundesland abbreviations:

• BW BY BE BB HB HH HE MV NI NW RP SL SN ST SH TH

Topic board

Topic	Canonical	BW	BY	BE	BB	HB	HH	HE	MV	NI	NW	RP	SL	SN	ST	SH	TH	Open canonical gaps	Next action
Sek II Mechanik / Dynamik	seed	loc	corr	loc	anchor	loc	seed	loc	corr	corr	loc	anchor	anchor	anchor	corr	anchor	the first renewed all-state mechanics audit now resolves every retained state cell once: the shared mechanics surface around free fall, horizontal throw, Newton, circle motion, and kinetic/energy entry remains sufficient for the reviewed HE/BY/NI/NW evidence plus the narrow SH circle-motion follow-on; HB, SL, SN, ST, and TH currently only contribute broad structural anchors on mechanics / energy / forces, while BW, BE, BB, HH, MV, and RP currently contribute only local side packaging such as gravitation-with-fields, gravitation / astrophysics electives, absent ordinary upper-secondary mechanics strips, or relativity-side dynamics without forcing a new canonical mechanics split	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active horizontal reviewed pass to Sek II Elektrizitaet / Magnetismus / Induktion unless later source evidence creates a genuinely shared mechanics mismatch
Sek II Elektrizitaet / Magnetismus / Induktion	seed	corr	corr	corr	corr	anchor	anchor	seed	anchor	corr	corr	corr	anchor	anchor	anchor	corr	anchor	the first renewed all-state field/induction audit now resolves every retained state cell once: the shared field/induction surface remains sufficient for the reviewed HE/BY/BW/BE/BB/NI/NW/RP/SH evidence, including the retained BE/BB 3.2.1 -> 3.2.2 route, the reviewed SH field/statische-Felder follow-ons, the widened BW electrodynamics strip, the hardened Bayern maintenance surface, and the now-closed RP field/induction family; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on field, magnetism, induction, or course-level packaging without forcing a new canonical split, while the formerly deferred BE/BB c0 / Relativitaet pair still land on the shared relativistic linear-accelerator excursus and the former BE/BB Eintrittswinkel clause plus the SH Massenspektrometer leaf now also land on shared canonical field/application surfaces	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor cells explicit, and reopen it only if later source revisions create a genuinely shared field/induction mismatch
Sek II Schwingungen / Wellen	seed	corr	corr	loc	loc	anchor	anchor	seed	anchor	corr	corr	corr	anchor	anchor	anchor	loc	anchor	the first renewed all-state oscillation/wave audit now resolves every retained state cell once: the shared oscillation/wave surface remains sufficient for the reviewed HE/BY/BW/NI/NW/RP evidence, including the widened BW Schwingungen / Wellen / Wellenoptik strips, the reviewed Niedersachsen wave strip plus Michelson follow-on, the narrow NRW light-wave surface, and the now-stable RP harmonics / waves / superposition family; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on oscillations, waves, wave optics, or course-level packaging, while BE, BB, and SH currently contribute only local side packaging because their active retained upper-secondary lanes stay on field-focused source families without an ordinary reviewed wave strip; the formerly frozen RP micro-residues on Periodendauer, Polarisation, Weisslichtspektrum, and gekoppelte Schwingungen now land conservatively on shared oscillation and interference surfaces	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and reopen it only if later source revisions create a genuinely shared oscillation/wave mismatch
Sek II Quanten / Atom / Kernphysik	seed	corr	loc	loc	loc	anchor	anchor	seed	anchor	loc	corr	corr	anchor	anchor	anchor	loc	anchor	the first renewed all-state quantum/atom/kernel audit now resolves every retained state cell once: the shared Q3/Q4 quantum, atom-model, and particle-physics surface remains sufficient for the reviewed HE/BW/NW/RP evidence, including the widened BW quantum strips, the narrow NRW GK/LK quantum and atom-model lane, and the now-stable RP Quantenobjekte I/II, Quantenmechanische Atomvorstellung I/II, Wechselwirkung von Quantenobjekten, and Elementarteilchenphysik family plus the RP follow-ons on Planck estimation, luminescence-side atom-model applications, pair production, open particle-physics questions, relativity-side Masse-Energie-Aequivalenz, astrophysics, cosmology, chaos, and fluid dynamics, all of which now land conservatively on shared canonical surfaces; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on quantum, atom-model, kernphysik, or course-level packaging, while BY, NI, BE, BB, and SH currently contribute only local side packaging through mixed wave/measurement clauses, fine-beam-tube evidence, or field-focused electron-measurement routes rather than one ordinary reviewed quantum corridor	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and reopen it only if later source revisions create a genuinely shared quantum-side mismatch
Sek I Elektrizitaet / Magnetismus	seed	n/s	loc	n/s	n/s	anchor	anchor	seed	anchor	n/s	n/s	n/s	anchor	anchor	anchor	n/s	anchor	the first renewed lower-secondary electricity/magnetism audit now resolves every currently source-backed lower-secondary state cell once: the shared Sek-I electricity/magnetism surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph8 Elektrischer Strom and Ph10 Elektromagnetismus; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on Stromkreise, Elektrizitaet, Magnetismus, Elektromagnetismus, oder Induktion without forcing a new canonical Sek-I split, while BW, BE, BB, NI, NW, RP, and SH still remain missing-source placeholders on this lower-secondary row because no retained DE-Gymnasium Sek-I state lane is active there yet	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Mechanik / Bewegung unless later retained Sek-I source activation creates a genuinely shared electricity/magnetism mismatch
Sek I Mechanik / Bewegung	seed	n/s	loc	n/s	n/s	anchor	anchor	seed	anchor	n/s	n/s	n/s	anchor	anchor	anchor	n/s	anchor	the second renewed lower-secondary audit now resolves every currently source-backed lower-secondary mechanics cell once: the shared Sek-I mechanics surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph8 Mechanik, Ph9 Energie als Erhaltungsgroesse, and the two Ph10 strips Impulserhaltung in der Mechanik and Bewegungen und ihre Modellierung; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on Bewegung, Kraft, Mechanik, Energie, oder Gravitation without forcing a new canonical Sek-I mechanics split, while BW, BE, BB, NI, NW, RP, and SH still remain missing-source placeholders on this lower-secondary row because no retained DE-Gymnasium Sek-I state lane is active there yet	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Optik / Licht / Schall unless later retained Sek-I source activation creates a genuinely shared mechanics mismatch
Sek I Optik / Licht / Schall	seed	n/s	loc	n/s	n/s	anchor	anchor	seed	anchor	n/s	n/s	n/s	anchor	anchor	anchor	n/s	anchor	the third renewed lower-secondary audit now resolves every currently source-backed lower-secondary optics/light/sound cell once: the shared Sek-I optics/light/sound surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph8 Optik; HB, HH, MV, SL, SN, ST, and TH currently contribute only broad structural anchors on Licht, Optik, Schall, Akustik, Bildentstehung, oder Abbildungen without forcing a new canonical Sek-I optics split, while BW, BE, BB, NI, NW, RP, and SH still remain missing-source placeholders on this lower-secondary row because no retained DE-Gymnasium Sek-I state lane is active there yet	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Waerme / Thermik / Teilchenmodell unless later retained Sek-I source activation creates a genuinely shared optics/light/sound mismatch
Sek I Waerme / Thermik / Teilchenmodell	seed	n/s	loc	n/s	n/s	n/s	n/s	seed	loc	n/s	n/s	n/s	anchor	loc	loc	n/s	loc	the fourth renewed lower-secondary audit now resolves every currently source-backed lower-secondary thermics cell once: the shared Sek-I heat/thermics/particle-model surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph9 Waermelehre; DE-SL currently contributes one broad structural anchor through the retained Klassenstufe 8 mechanics/thermics strip, while DE-MV, DE-SN, DE-ST, and DE-TH currently contribute only local retained side evidence because their lower-secondary thermics strips remain explicitly source-led outside the first P3 anchor cut; DE-HB, DE-HH, DE-BW, DE-BE, DE-BB, DE-NI, DE-NW, DE-RP, and DE-SH still remain missing-source placeholders or row-external lower-secondary packaging on this strip	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Radioaktivitaet / Kernphysik unless later retained Sek-I source activation creates a genuinely shared thermics mismatch
Sek I Radioaktivitaet / Kernphysik	seed	n/s	loc	n/s	n/s	anchor	loc	seed	anchor	n/s	n/s	n/s	anchor	n/s	n/s	n/s	anchor	the fifth renewed lower-secondary audit now resolves every currently source-backed lower-secondary radioactivity/nuclear cell once: the shared Sek-I radioactivity/nuclear surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph10 Kernphysik; DE-HB, DE-MV, DE-SL, and DE-TH currently contribute broad structural anchors on Radioaktivitaet, ionisierende Strahlung, Kernenergie, oder Kernphysik, while DE-HH currently contributes only local retained side packaging through the transition strip Licht und Materie with ionising radiation; DE-BW, DE-BE, DE-BB, DE-NI, DE-NW, DE-RP, DE-SH, DE-SN, and DE-ST still remain missing-source placeholders or row-external lower-secondary packaging on this strip	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Stoffe / Dichte / Druck / Auftrieb unless later retained Sek-I source activation creates a genuinely shared radioactivity/nuclear mismatch
Sek I Stoffe / Dichte / Druck / Auftrieb	seed	n/s	loc	n/s	n/s	loc	n/s	seed	anchor	n/s	n/s	n/s	anchor	anchor	anchor	n/s	anchor	the sixth renewed lower-secondary audit now resolves every currently source-backed lower-secondary density/pressure/buoyancy cell once: the shared Sek-I materials/density/pressure/buoyancy surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on pressure and gases in Ph9 Waermelehre; DE-MV, DE-SL, DE-SN, DE-ST, and DE-TH currently contribute broad structural anchors on Dichte, Druck, Auftrieb, Fluessigkeiten, Gase, oder Stoffeigenschaften, while DE-HB currently contributes only local retained side packaging through the J7/8 force-motion strip with Dichte; DE-HH, DE-BW, DE-BE, DE-BB, DE-NI, DE-NW, DE-RP, and DE-SH still remain missing-source placeholders or row-external lower-secondary packaging on this strip	treat the row as horizontally audited and stable at the canonical level, keep the audited anchor and loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Energie / Arbeit / Leistung / Erhaltung unless later retained Sek-I source activation creates a genuinely shared density/pressure/buoyancy mismatch
Sek I Energie / Arbeit / Leistung / Erhaltung	seed	n/s	loc	n/s	n/s	loc	loc	seed	loc	n/s	n/s	n/s	loc	loc	loc	n/s	loc	the seventh renewed lower-secondary audit now resolves every currently source-backed lower-secondary energy/work/power/conservation cell once: the shared Sek-I energy surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on Ph9 Energie als Erhaltungsgroesse; DE-HB, DE-HH, DE-MV, DE-SL, DE-SN, DE-ST, and DE-TH currently contribute only local retained side packaging because energy, work, power, efficiency, and conservation still sit inside mechanics strips, transition packages, feeders, or explicitly source-led residual leaves rather than in their own first P3 anchor cut; DE-BW, DE-BE, DE-BB, DE-NI, DE-NW, DE-RP, and DE-SH still remain missing-source placeholders or row-external lower-secondary packaging on this strip	treat the row as horizontally audited and stable at the canonical level, keep the audited loc cells explicit, and move the active lower-secondary reviewed pass to Sek I Klima / Energieversorgung / Umwelturteil unless later retained Sek-I source activation creates a genuinely shared energy-side mismatch
Sek I Klima / Energieversorgung / Umwelturteil	seed	n/s	loc	n/s	n/s	n/s	loc	seed	n/s	n/s	n/s	n/s	loc	loc	n/s	n/s	n/s	the eighth renewed lower-secondary audit now resolves every currently source-backed lower-secondary climate/energy-supply/environment-judgment cell once: the shared Sek-I climate/energy-supply/environment-judgment surface remains sufficient for the reviewed Hessen seed plus the retained Bayern side evidence on climate-system texts, climate-protection measures, and source-based environmental evaluation in the common Gymnasium bundle; DE-HH, DE-SL, and DE-SN currently contribute only local retained side packaging through the Hamburg transition strip Energie: Erhaltung, Wirkungsgrad, Klima und Kraftwerke, the Saarland class-10 mixed strips on nachhaltige Energieversorgung and Klimaphysik, and the Sachsen K9 Lernbereich 2 Energieversorgung, while DE-HB, DE-MV, DE-BW, DE-BE, DE-BB, DE-NI, DE-NW, DE-RP, DE-ST, DE-SH, and DE-TH still remain missing-source placeholders or row-external lower-secondary packaging on this strip	treat the row as horizontally audited and stable at the canonical level, keep the audited loc cells explicit, and make the next clean move an explicit lower-secondary row-admission decision rather than opening another row or another state-local widening on reflex

Current recommendation

Current focus:

1. keep Sek II Mechanik / Dynamik stable after the first renewed all-state audit
2. keep Sek II Elektrizitaet / Magnetismus / Induktion stable after the renewed all-state audit
3. keep Sek II Schwingungen / Wellen stable after the renewed all-state audit
4. keep Sek II Quanten / Atom / Kernphysik stable after the renewed all-state audit
5. keep Sek I Elektrizitaet / Magnetismus stable after the first renewed lower-secondary all-state audit
6. keep Sek I Mechanik / Bewegung stable after the renewed lower-secondary all-state audit
7. keep Sek I Optik / Licht / Schall stable after the renewed lower-secondary all-state audit
8. keep Sek I Waerme / Thermik / Teilchenmodell stable after the renewed lower-secondary all-state audit
9. keep Sek I Radioaktivitaet / Kernphysik stable after the renewed lower-secondary all-state audit
10. keep Sek I Stoffe / Dichte / Druck / Auftrieb stable after the renewed lower-secondary all-state audit
11. keep Sek I Energie / Arbeit / Leistung / Erhaltung stable after the renewed lower-secondary all-state audit
12. keep Sek I Klima / Energieversorgung / Umwelturteil stable after the renewed lower-secondary all-state audit
13. treat the first renewed lower-secondary row tranche as horizontally audited once at the current reviewed cut
14. keep additional lower-secondary row admission frozen at the current reviewed cut
15. treat the first post-tranche lower-secondary candidate sweep as complete
16. do not reopen lower-secondary row admission on the current evidence floor unless new source-backed evidence appears
17. treat the current F5 horizontal reentry tranche itself as complete at the current reviewed cut
18. move Physics explicitly into maintenance / evidence-watch mode until a new source-backed trigger appears

Active coordination artifact:

1. docs/dev/canonical-gymnasium-physics-topic-workboard.md

Why:

• Physics now has enough reviewed multi-state evidence that another single-state widening would only deepen source asymmetry
• Berlin and Brandenburg still close the retained BE/BB 3.2.1 -> 3.2.2 cut without forcing another canonical atom, and only the remaining Eintrittswinkel clause stays explicitly frozen as source-led residue
• Schleswig-Holstein no longer needs another reflex widening on the same retained source family; the next clean move is now a new state/source family outside the frozen SH and BE/BB residues
• the missing nationwide Physics debt is no longer source acquisition itself, no longer snapshot activation itself, no longer the first conservative structural-anchor floor for the newly activated state bundles, and no longer the initial upper-secondary four-row pass; all of that is now complete
• the correct next move is therefore no longer another preselected row on reflex, and that row-admission decision is now resolved conservatively: the retained lower-secondary evidence does not yet justify one more nationwide row beyond this first audited tranche
• the three strongest visible post-tranche lower-secondary candidates have now also been checked explicitly and none clears the admission bar on the current evidence floor
• the current horizontal all-state reentry tranche is therefore operationally closed at the current reviewed cut until new source-backed evidence appears
• the operational consequence is now explicit maintenance / evidence-watch mode, not another hidden active rollout on the same evidence floor

Current blocker note:

1. the archive tranche is complete, the snapshot/provenance tranche is complete, and the first conservative statewide structural-anchor floor is now also complete
2. the first renewed lower-secondary row tranche is now also complete at the current reviewed cut
3. no retained state currently needs another opportunistic widening, and no additional lower-secondary row is admitted yet
4. the active blocker is now the lack of a sufficiently Hessen-seeded and multi-state-supported next lower-secondary row candidate beyond the first audited tranche
5. the strongest currently visible next candidate Sek I Kosmos / Erde / Mensch / Astronomie still fails the admission bar: Sachsen carries one clear retained K10 astronomy anchor, Hamburg only one local side clause on solar energy, Bayern's strongest astronomy evidence in the retained bundle is upper-secondary Ph13 Astrophysik, and Hessen currently contributes no lower-secondary seed strip for that row
6. the second visible next candidate Sek I Elektronik / Halbleiter / elektromagnetische Wellen also still fails the admission bar: Sachsen carries the clearest retained lower-secondary evidence through K9 Grundlagen der Elektronik and K10 Hertz'sche Wellen, Saarland and Sachsen-Anhalt contribute only mixed side packaging on Halbleiter or semiconductors inside broader electricity strips, and Hessen currently contributes no lower-secondary seed strip for that row
7. the third visible next candidate Sek I Licht / Materie / Atommodell / Strahlung is also not row-worthy yet, but for a different reason: Hessen does carry a lower-secondary seed on Bausteine des Atoms and Radioaktive Strahlung, and Hamburg carries the mixed strip Licht und Materie, yet this evidence is already materially absorbed by the audited rows Sek I Optik / Licht / Schall and Sek I Radioaktivitaet / Kernphysik rather than forcing a distinct new nationwide row
8. the first post-tranche lower-secondary candidate sweep is therefore complete; another candidate pass on the same retained evidence floor would currently be redundant

Current reopen triggers:

1. admit a new lower-secondary nationwide row only if a Hessen-seeded strip appears that is also supported by at least one additional retained state lane and is not already materially absorbed by an audited row
2. reopen Sek I Kosmos / Erde / Mensch / Astronomie only if Hessen gains an explicit lower-secondary astronomy / cosmos strip or another currently non-Sachsen lane gains a comparably broad retained lower-secondary astronomy anchor
3. reopen Sek I Elektronik / Halbleiter / elektromagnetische Wellen only if Hessen gains an explicit lower-secondary electronics / semiconductors / electromagnetic-waves strip or a second non-Sachsen lane moves from mixed side packaging to a clear retained row
4. reopen Sek I Licht / Materie / Atommodell / Strahlung only if new retained evidence forces a distinct canonical gap beyond the already audited rows Sek I Optik / Licht / Schall and Sek I Radioaktivitaet / Kernphysik
5. reopen any upper-secondary state lane only if a later source revision or another Bundesland's retained source family creates a genuinely shared Physics gap that is not already covered by the stable reviewed cuts

Current watch targets:

1. watch Hessen Sek I first: any future lower-secondary source revision that adds a visible strip on astronomy / cosmos, electronics / semiconductors / electromagnetic waves, or a distinct light-matter / atom-model / radiation band is the strongest direct reopen trigger
2. watch Sachsen Sek I as the strongest non-Hessen evidence floor for Kosmos and Elektronik: K10 Lernbereich 2 Kosmos, Erde und Mensch, K9 Lernbereich 1 Grundlagen der Elektronik, and K10 Lernbereich 4 Hertz'sche Wellen
3. watch Hamburg Sek I for possible strengthening of the current side clauses Energieerzeugung in der Sonne and Licht und Materie
4. watch Saarland and Sachsen-Anhalt Sek I for a possible shift from mixed side packaging on Halbleiter / semiconductors into a clearly retained standalone row
5. watch reviewed upper-secondary maintenance lanes only for true scope changes: no open residue lane remains, so reopen only if a later source revision creates a genuinely shared canonical gap

Current watch files:

1. DE_HES_S_GYM_1_PHYSIK.de.json.snapshot
2. DE_SAC_S_GYM_1_PHYSIK.de.json.snapshot
3. DE_HAM_S_GYM_1_PHYSIK.de.json.snapshot
4. DE_SAR_S_GYM_1_PHYSIK.de.json.snapshot
5. DE_SAN_S_GYM_1_PHYSIK.de.json.snapshot
6. DE_BRA_S_GYM_2_PHYSIK.de.json.snapshot and DE_BER_S_GYM_2_PHYSIK.de.json.snapshot for future scope changes on the reviewed BE/BB field lane
7. DE_SHL_S_GYM_2_PHYSIK.de.json.snapshot for future scope changes on the reviewed SH field lane
8. DE_RLP_S_GYM_2_PHYSIK.de.json.snapshot for future scope changes on the reviewed RP LF follow-on family

Machine-readable watch manifest:

1. physics-evidence-watch-manifest.json
2. canonical-gymnasium-physics-evidence-watch-status.md rendered by render_canonical_physics_evidence_watch_status.py
3. physics-evidence-watch-baseline.json captured by capture_canonical_physics_evidence_watch_baseline.py
4. canonical-gymnasium-physics-evidence-watch-delta.md rendered by render_canonical_physics_evidence_watch_delta.py
5. exit-code maintenance check via check_canonical_physics_evidence_watch_delta.py
6. fixed run path via run_canonical_physics_evidence_watch.sh or cd app && npm run check:canonical-physics-evidence-watch
7. scheduled GitHub Actions hook via canonical_physics_evidence_watch.yml

Definition of done for one Physics topic row:

1. the canonical atom inventory for that row is reviewed and, where needed, tightened
2. reviewed state evidence no longer forces obvious new shared Physics atoms
3. every currently available retained-source state cell in that row is resolved once; remaining n/s cells are only missing-source placeholders
4. state mappings for the resolved states are consistent with the revised canonical cuts
5. state-local leftovers are explicitly marked as loc or left out of the canonical core