cellpy 2.2 (Stage 5) — tracking issue

[jepegit]

cellpy 2.2 = the deferred "complete cellpy 2" features (architecture plan §3): additive,
version-cleanly. Mirror of 2.1 — where 2.0 finalized what can't be shimmed and 2.1 spent the
shims, 2.2 delivers the parked features. Kept deliberately lean: v2-migration bug reports
ship as v2.1.x patches off master, not folded in here.

Plan: stage5-github-issues.md · coordinating: cellpy2-architecture-plan.md §Stage 5.

Epic L — Live / incremental refresh (cellpy-only; design done)

• L6: golden equality test — incremental update() == full load #778 L6 — golden equality test (author first: incremental update() == full load)
• L1: SupportsIncrementalLoad protocol + LoadMarker/IncrementalChunk (cellpy-hosted) #779 L1 — SupportsIncrementalLoad protocol + marker/chunk types (cellpy-hosted)
• L2: load_since() for cheap-partial loaders (arbin_res/sql, neware_txt, maccor_txt) #780 L2 — load_since() for cheap-partial loaders (arbin_res/sql, neware_txt, maccor_txt)
• Allow for c.update() #164 L3 — CellpyCell.update() (change-detect + protocol/fallback; persist marker)
• L4: live.py poll loop; retire processor.py; fix batch_core lstrip #781 L4 — live.py poll loop; retire processor.py; fix batch_core lstrip
• L5: batch live refresh — b.update(live=True) / b.poll() #782 L5 — batch live refresh (b.update(live=True) / b.poll())

Epic S — Step/summary science (additive columns, current schema; core-first)

• Estimate internal resistance at start and end of (dis)charge #313 S1 — internal resistance at start/end of (dis)charge
• Split single-step CCCV-steps into CC and CV substeps #312 S2 — split single-step CCCV into CC/CV substeps + CV-share
• handle full cells that starts with a discharge step #359 S3 — full cells that start with a discharge (cycle_mode/counter) — convention delta

Epic I — Instruments / IO

• Add support for Biologic mpr data version 3 #270 I1 — Biologic mpr v3
• Better support for csv-type files #338 I2 — better csv support (discoverable instrument=/model=, format inspection)
• exporter from Arbin db #306 I3 — Arbin-db exporter (one file per test)
• Custom loader silently omits a declared-but-absent column #761 I4 — loader robustness: declared-but-absent column must not be silently dropped

Epic R — Remote paths & discovery

• Regression: scp:// SSH-config Host aliases no longer resolve after UPath OtherPath switch #687 R1 — regression: scp://<ssh-config-alias>/... resolution (or fail-loud + docs)
• feat: filefinder / batch dump scoped to project subfolder with fuzzy match hints #691 R2 — project-scoped filefinder + fuzzy match hints

Deferred → 2.3 (v.2.3 milestone)

SPEED-30 value+unit+dtype versioned headers (structural headline) · #73 GITT/PITT analysis.
Design-only, post-2.2: original-vs-processed data curation (#206).

Sequencing

Only Epic S is core-first (core PR → PyPI → cellpy re-pin); L/I/R are cellpy-only.
L6 first, then L1 → L2 → L3 → L4/L5. S1/S2 share one schema addition; S3 is a
user-visible convention change → #-delta register + comparator exception. I1–I4 and R1
parallel; R2 needs batch project wiring. Startable now: #778, S-oracle characterization,
#270, #306, #761, #687.