Rename FABRIC series: FABRIC.md->0, FABRIC-2.md->1, FABRIC-3.md->2, FABRIC-4.md unchanged

FABRIC.md -> FABRIC-0.md
FABRIC-2.md -> FABRIC-1.md
FABRIC-3.md -> FABRIC-2.md (the current/living document)
FABRIC-4.md unchanged (new #3 to follow separately)

Every cross-reference repo-wide updated to match, including doc-comment
citations inside kernel source (.c/.h) files -- done via an ordered
placeholder substitution (FABRIC-3.md->placeholder2, FABRIC-2.md->
placeholder1, FABRIC.md->placeholder0, then placeholders resolved to
final names) in a single pass per file to avoid double-shifting
already-renamed references.

One line in capsules/font.4th grew past the 64-char block-format limit
as a side effect of the longer filename; shortened it and reverified
with mkcapsule --lint (34/34 pass) before rebuilding.

Verified 3-arch boot to ok> (amd64/aarch64/riscv64, each in the
foreground) after the fix; logs and DoE CSVs from this session's
verification runs included per this repo's own audit-artifact
convention.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var

include/starkernel/vm/stadium_words.h

@@ -22,7 +22,7 @@
  */
 
 /**
- * stadium_words.h - Word patrons on the Stadium (FABRIC.md §17.3/§17.7,
+ * stadium_words.h - Word patrons on the Stadium (FABRIC-0.md §17.3/§17.7,
  * punch list item 4.1)
  *
  * The word-specific layer on top of the generic L0 engine (stadium.h).
@@ -57,7 +57,7 @@
  * first; guarded internally as a no-op if already initialized. Nothing
  * calls it twice today.
  *
- * item 4.2 (FABRIC.md §25.5): the map is keyed by quota slot, not just
+ * item 4.2 (FABRIC-0.md §25.5): the map is keyed by quota slot, not just
  * word_id -- word_id is assigned per-VM (vm->next_word_id), not globally
  * unique, so a single shared word_id -> cell_index map aliased different
  * VMs' words onto each other's Stadium cells and reservoirs the moment a
@@ -67,7 +67,7 @@
 void stadium_words_init(void);
 
 /*
- * stadium_word_dispatch - The per-dispatch entry point (FABRIC.md §17.7),
+ * stadium_word_dispatch - The per-dispatch entry point (FABRIC-0.md §17.7),
  * called once per DictEntry touched at each of vm_core.c's three
  * physics_execution_heat_increment() call sites -- deliberately mirroring
  * that function's existing call pattern 1:1, including the entry != canon
@@ -80,7 +80,7 @@ void stadium_words_init(void);
  * STADIUM_WORD_HEAT_QUANTUM from the reservoir into the cell -- clamped to
  * what the reservoir actually holds AND to a floor of Q48_ONE / 3 that
  * word-execution admission alone may never dip the reservoir below
- * (FABRIC.md §25.7, Captain Bob's ruling 2026-08-06: this pull fires on
+ * (FABRIC-0.md §25.7, Captain Bob's ruling 2026-08-06: this pull fires on
  * EVERY dispatch, not just first admission, and without a floor exhausts a
  * VM's entire reservoir in ~32 dispatches, starving any application-level
  * economy -- e.g. item 4.2's Hermes -- sharing the same VM's reservoir).
@@ -102,7 +102,7 @@ void stadium_words_init(void);
  *
  * @param vm_id           Owning VM -- vm->stadium_vm_id at every call site.
  *                        Scopes the word_id -> cell_index lookup to this
- *                        VM's own quota slot (item 4.2, FABRIC.md §25.5) so
+ *                        VM's own quota slot (item 4.2, FABRIC-0.md §25.5) so
  *                        two VMs' independently-numbered word_ids cannot
  *                        alias onto each other's cells/reservoirs.
  * @param word_id         The dispatching DictEntry's stable word_id.
@@ -123,7 +123,7 @@ void stadium_word_dispatch(VMUuid vm_id, uint32_t word_id, uint64_t heartbeat_ti
  * the map entry. No-op if word_id is not resident, out of range, or vm_id
  * holds no Stadium quota.
  *
- * @param vm_id    Owning VM -- vm->stadium_vm_id (item 4.2, FABRIC.md §25.5:
+ * @param vm_id    Owning VM -- vm->stadium_vm_id (item 4.2, FABRIC-0.md §25.5:
  *                 scopes the lookup to this VM's own word_slots, same
  *                 reason stadium_word_dispatch() takes it).
  * @param word_id  The DictEntry's word_id, about to be recycled.
@@ -136,7 +136,7 @@ void stadium_word_forget(VMUuid vm_id, uint32_t word_id);
  * own word_slots map) -- NOT messages/channels/other application residents,
  * which stadium_resident_sum() (stadium.h, item 4.2) mixes in alongside
  * everything else a VM owns. Exists so a VM's own application-level
- * conservation check (e.g. Hermes's HERMES-K, FABRIC.md §25.7, Captain
+ * conservation check (e.g. Hermes's HERMES-K, FABRIC-0.md §25.7, Captain
  * Bob's ruling 2026-08-06) can add this as an explicit term instead of
  * silently omitting word-execution heat it has no other way to see.
  *
@@ -168,7 +168,7 @@ void stadium_words_stats(VMUuid vm_id, uint64_t *promotions, uint64_t *evictions
  * Σ(resident heat) + reservoir against Q48_ONE as a conservation check --
  * not required by the acceptance text, but the mechanism proves nothing if
  * this silently doesn't hold. The heat sum is scoped to vm_id's own quota
- * (stadium_resident_sum(), item 4.2, FABRIC.md §25.5) so two VMs' checks
+ * (stadium_resident_sum(), item 4.2, FABRIC-0.md §25.5) so two VMs' checks
  * close independently instead of mixing both VMs' resident heat together.
  *
  * @param vm_id  The VM whose reservoir to read (vm_uuid_hera() today).